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Added sortix_strerror(3) which replaces strerror(3).
The string returned is now const - POSIX did not allow modifying the string in any case, conforming applications should not break. If _SORTIX_SOURCE is defined strerror(3) automatically redirects to sortix_strerror(3), otherwise the application will receive the traditional function.
This commit is contained in:
Jonas 'Sortie' Termansen
parent
9905a2f2d6
commit
87b81080d5
2 changed files with 71 additions and 58 deletions
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@ -1,6 +1,6 @@
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/******************************************************************************
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COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2011.
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COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2011, 2012.
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This file is part of LibMaxsi.
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@ -20,8 +20,9 @@
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error.cpp
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Error reporting functions and utilities.
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******************************************************************************/
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*******************************************************************************/
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#define __SORTIX_STDLIB_REDIRECTS 0
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#include <libmaxsi/platform.h>
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#include <libmaxsi/error.h>
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#ifndef SORTIX_KERNEL
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@ -29,64 +30,68 @@
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#include <stdio.h>
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#endif
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namespace Maxsi
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{
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namespace Error
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{
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extern "C" { int errno = 0; }
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namespace Maxsi {
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namespace Error {
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extern "C" { int errno = 0; }
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#ifndef SORTIX_KERNEL
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DEFN_SYSCALL1(int, SysRegisterErrno, SYSCALL_REGISTER_ERRNO, int*);
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DEFN_SYSCALL1(int, SysRegisterErrno, SYSCALL_REGISTER_ERRNO, int*);
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extern "C" void init_error_functions()
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{
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errno = 0;
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SysRegisterErrno(&errno);
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}
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extern "C" void init_error_functions()
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{
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errno = 0;
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SysRegisterErrno(&errno);
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}
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#endif
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extern "C" char* strerror(int code)
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{
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switch ( code )
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{
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case ENOTBLK: return (char*) "Block device required";
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case ENODEV: return (char*) "No such device";
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case EWOULDBLOCK: return (char*) "Operation would block";
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case EBADF: return (char*) "Bad file descriptor";
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case EOVERFLOW: return (char*) "Value too large to be stored in data type";
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case ENOENT: return (char*) "No such file or directory";
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case ENOSPC: return (char*) "No space left on device";
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case EEXIST: return (char*) "File exists";
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case EROFS: return (char*) "Read-only file system";
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case EINVAL: return (char*) "Invalid argument";
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case ENOTDIR: return (char*) "Not a directory";
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case ENOMEM: return (char*) "Not enough memory";
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case ERANGE: return (char*) "Result too large";
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case EISDIR: return (char*) "Is a directory";
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case EPERM: return (char*) "Operation not permitted";
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case EIO: return (char*) "Input/output error";
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case ENOEXEC: return (char*) "Exec format error";
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case EACCES: return (char*) "Permission denied";
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case ESRCH: return (char*) "No such process";
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case ENOTTY: return (char*) "Not a tty";
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case ECHILD: return (char*) "No child processes";
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case ENOSYS: return (char*) "Function not implemented";
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case ENOTSUP: return (char*) "Operation not supported";
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case EBLOCKING: return (char*) "Operation is blocking";
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case EINTR: return (char*) "Interrupted function call";
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case ENOTEMPTY: return (char*) "Directory not empty";
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case EBUSY: return (char*) "Device or resource busy";
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case EPIPE: return (char*) "Broken pipe";
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case EILSEQ: return (char*) "Illegal byte sequence";
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case ELAKE: return (char*) "Sit by a lake";
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case EMFILE: return (char*) "Too many open files";
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case EAGAIN: return (char*) "Resource temporarily unavailable";
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case EEOF: return (char*) "End of file";
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case EBOUND: return (char*) "Out of bounds";
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case EINIT: return (char*) "Not initialized";
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default: return (char*) "Unknown error condition";
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}
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}
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extern "C" const char* sortix_strerror(int errnum)
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{
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switch ( errnum )
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{
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case ENOTBLK: return "Block device required";
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case ENODEV: return "No such device";
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case EWOULDBLOCK: return "Operation would block";
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case EBADF: return "Bad file descriptor";
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case EOVERFLOW: return "Value too large to be stored in data type";
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case ENOENT: return "No such file or directory";
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case ENOSPC: return "No space left on device";
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case EEXIST: return "File exists";
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case EROFS: return "Read-only file system";
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case EINVAL: return "Invalid argument";
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case ENOTDIR: return "Not a directory";
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case ENOMEM: return "Not enough memory";
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case ERANGE: return "Result too large";
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case EISDIR: return "Is a directory";
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case EPERM: return "Operation not permitted";
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case EIO: return "Input/output error";
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case ENOEXEC: return "Exec format error";
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case EACCES: return "Permission denied";
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case ESRCH: return "No such process";
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case ENOTTY: return "Not a tty";
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case ECHILD: return "No child processes";
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case ENOSYS: return "Function not implemented";
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case ENOTSUP: return "Operation not supported";
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case EBLOCKING: return "Operation is blocking";
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case EINTR: return "Interrupted function call";
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case ENOTEMPTY: return "Directory not empty";
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case EBUSY: return "Device or resource busy";
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case EPIPE: return "Broken pipe";
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case EILSEQ: return "Illegal byte sequence";
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case ELAKE: return "Sit by a lake";
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case EMFILE: return "Too many open files";
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case EAGAIN: return "Resource temporarily unavailable";
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case EEOF: return "End of file";
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case EBOUND: return "Out of bounds";
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case EINIT: return "Not initialized";
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default: return "Unknown error condition";
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}
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}
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extern "C" char* strerror(int errnum)
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{
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return (char*) sortix_strerror(errnum);
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}
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} // namespace Error
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} // namespace Maxsi
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@ -1,6 +1,6 @@
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/******************************************************************************
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COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2011.
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COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2011, 2012.
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This file is part of LibMaxsi.
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@ -20,7 +20,7 @@
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string.h
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String operations.
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******************************************************************************/
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*******************************************************************************/
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#ifndef _STRING_H
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#define _STRING_H 1
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@ -46,7 +46,6 @@ int strcoll(const char*, const char*);
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size_t strcspn(const char*, const char*);
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char* strcpy(char* restrict, const char* restrict);
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char* strdup(const char*);
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char* strerror(int);
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size_t strlen(const char*);
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char* strncat(char* restrict, const char* restrict, size_t);
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int strncmp(const char*, const char*, size_t);
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@ -76,6 +75,15 @@ size_t strxfrm_l(char* restrict, const char* restrict, size_t, locale_t);
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char* strchrnul(const char* str, int c);
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#endif
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#if defined(_SORTIX_SOURCE)
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const char* sortix_strerror(int errnum);
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#endif
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#if defined(_SOURCE_SOURCE) && __SORTIX_STDLIB_REDIRECTS
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const char* strerror(int errnum) asm ("sortix_getenv");
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#else
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char* strerror(int errnum);
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#endif
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__END_DECLS
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#endif
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